/* 弹性布局 */

.fdc,
.jc,
.ac,
.as,
.jac,
.jsa,
.jsb,
.jsbw,
.fw,
.jend,
.aend,
.flex,
.no-blank {
  display: flex;
}

.fdc {
  flex-direction: column;
}

.jc {
  justify-content: center;
}

.ac {
  align-items: center;
}

.as {
  align-items: flex-start;
}

.aend {
  align-items: flex-end;
}

.jac {
  justify-content: center;
  align-items: center;
}

.jsa {
  justify-content: space-around;
}

.jsb {
  justify-content: space-between;
}

.jend {
  justify-content: flex-end;
}

.jsbw {
  justify-content: space-between;
  flex-wrap: wrap;
}

.fw {
  flex-wrap: wrap;
}

.flex-1 {
  flex: 1;
}

/* 空处理 */

.no-blank {
  align-items: center;
  justify-content: center;
  color: #999;
  font-size: 13px;
  padding: 10px 0;
}

/* 一行显示 */

.onerow {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* 三角 */

.triangle {
  width: 0;
  height: 0;
  border-right: 10px solid transparent;
  border-left: 10px solid transparent;
  border-bottom: 10px solid #000;
  transition: 0.3s;
}

.triangle_top {
  transform: rotate(0);
}

.triangle_down {
  transform: rotate(180deg);
}

.triangle_left {
  transform: rotate(-90deg);
}

.triangle_right {
  transform: rotate(90deg);
}

/* 箭头 */

.arrow {
  width: 10px;
  height: 10px;
  border: 1px solid #999;
  border-left: 0 !important;
  border-bottom: 0 !important;
  transition: 0.3s;
}

.arrow_up {
  transform: rotate(-45deg);
}

.arrow_down {
  transform: rotate(135deg);
}

.arrow_left {
  transform: rotate(-135deg);
}

.arrow_right {
  transform: rotate(45deg);
}
